I stripped to my underwear in front of my girlfriend's brother

My girlfriend's brother got me hard and half naked in the laundry room

The day at my girlfriend's house passed in this weird haze of normal couple stuff mixed with her brother Tyler throwing me these loaded little glances every chance he got. Mia’s brother had been looking at my bulge nonstop licking his full wet lips which told me that he might be a good cocksucker. I tried to brush it off but damn the way he stared made my ego swell bigger with every passing hour.

We spent the afternoon out by the pool - Mia and I splashing around and making out heavy while the sun beat down on my bare chest. I kept catching Tyler on the lounge chair across the water, his eyes glued to my wet body, the water running down my abs and soaking into the front of my shorts until the fabric clung tight to the fat outline of my cock. Every time Mia pulled me in for another deep kiss, I felt his stare burning hotter like he was imagining taking her place. I loved it. The thrill of being wanted that bad by another dude right under her nose sent blood rushing straight to my groin and kept me half hard the whole time. We laughed and played it cool but my mind kept flashing back to that morning offer in the living room and how his eyes had begged for a taste of what I was packing.

Later that evening, Mia wanted to cook dinner… so we all hung out in the kitchen together, chopping vegetables and laughing about dumb family stories. Tyler kept brushing past me in the tight space, his slim hip grazing my thigh on purpose every single time. He would mutter a fake ‘Oops sorry, Jake’ but his little smile made it clear he was not sorry at all. Each brush sent a jolt through me and my mind flashed right back to that kitchen island foot tap from the night before and the way his eyes had been locked on mine the entire day like he wanted me to know he was not giving up.

I kept my cool cracking jokes with Mia while my brain replayed how good it felt to have a guy look at me like I was the fucking prize. Six foot four of solid muscle from years of gym and water polo and basketball and here was this slim blonde twink acting like my body was the only thing he could think about. It stroked me deep. Girls had always wanted me but having my girlfriend’s own brother so openly hungry for me felt next level dangerous and hot as hell.

After dinner we settled in for a movie. Mia curled up against my side on the big sectional couch; her head resting right on my chest. Tyler took the other end of the couch legs stretched out so his bare foot ended up resting right against my calf. I did not move it away this time. The movie played on some action flick full of explosions and car chases but my focus was split. Every few minutes Tylers toes would flex and press a little firmer against my skin. It was subtle enough that Mia never noticed but it sent this low electric hum straight to my groin. My cock started to thicken again inside my shorts, growing fuller and heavier with each little touch. I shifted my hips trying to hide the growing outline but Tyler caught it. I saw his eyes flick down in the dim light of the tv screen and that coy smile crept back onto his face while he licked his lips once again.

“Great movie,” he said, voice casual but his eyes stayed low on my lap. “I am loving the way it keeps building up tension right before it explodes.”

Mia yawned big and stretched then got up from the couch. “You boys carry on," she said. “I am going to head upstairs and crash.” She kissed me goodnight soft and sweet on the lips then told us not to stay up too late before she headed upstairs. Tyler and I stayed on the couch pretending to watch the movie but the tension in the room was high, the space suddenly feeling way smaller without her there. He turned to me, legs still stretched out, feet still touching my calf.

“You know I was serious earlier… about wanting tips on building muscle,” he said, voice low and easy. “Maybe you could show me some form tomorrow morning before Mia wakes up. I could learn a thing or two from you.”

I laughed but it came out a little rougher than I meant. “Yeah sure man. I’ll walk you through the basics.”

He nodded but his eyes dropped to my lap again where my cock had not fully softened. The bulge was still there thick and obvious. I did not cover it. Part of me liked the way he openly stared at my cock. I have always known I am hung and my bulge is way too obvious. Girls have told me. Guys have stared in locker rooms. But having this slim blonde twink look at it like he needed it in his mouth right then made my ego swell almost as much as my dick. I spread my legs a fraction wider on purpose letting the shorts ride up my thighs.

I let the silence hang for a beat, then stood up… letting my cock shift heavy in my shorts as I stretched my arms overhead. The hem of my tank top rode up showing the bottom of my abs and that deep v line again. Tyler's eyes followed every inch like he was memorizing me.

“Guess I will see you in the morning for that workout," I said in a casual voice.

He nodded, eyes still glued low. “Yeah. Bright and early.”

I headed upstairs to Mia's room, my cock half hard the whole climb. She was already asleep on her stomach ass looking perfect under the thin sheet. I stripped down to nothing and slid in beside her pulling her close. It felt good to be cuddled up against her warm body. But my mind kept drifting downstairs to Tyler on that couch and the way he had looked at my bulge like it was the only thing he wanted. Sleep did not come easy that night. My cock stayed restless twitching every time I remembered his foot pressing against me or the way his lips had glistened when he licked them. I told myself I was straight. I loved Mia. But the ego rush from her own brother wanting me so bad was already sinking its hooks in deep and I could not shake the feeling that tomorrow morning was going to test every bit of my control.

The next morning, I woke up before Mia. My cock was rock hard again; morning wood at full mast from the dreams I could barely remember. Maybe I dreamed about Mia or maybe about her brother sucking me off. I pulled on my shorts and the same tank top and headed down to the kitchen for water. Tyler was already there in his own loose shorts and t-shirt looking fresh and eager. He handed me a bottle without a word, his eyes dropping straight to the obvious tent in my shorts.

“Ready for that workout?" he asked, voice breathy again.

I smirked and nodded. “Let's do it.”

We moved to the garage. I showed him proper push up form getting down on the floor beside him demonstrating slow and controlled. My tank top rode up my back muscles flexing under the fabric. Tyler watched close then tried it himself. His form was shit but I corrected him, hands on his slim shoulders guiding him down. Each time he lowered his body his ass pushed back a little and I felt that familiar twitch in my groin. After a set, I showed him squats and deadlifts using the light two kilogram dumbbells that were Mias. I spotted him from behind my hands, light on his hips. He squatted deep and when he came up his ass brushed right against the front of my shorts. My cock was fully hard now pressed against him for a split second before I stepped back. Tyler straightened and turned around face flushed.

“Sorry about that,” he said but his smile said he was not sorry at all.

“No problem,” I replied, voice a little rough. “Happens.”

We kept going for another twenty minutes trading exercises, showing him every move and telling him about progressive overload. Every correction, every touch felt charged. My bulge never went down and Tyler never stopped staring. When we finally called it, I was sweating, the tank top stuck to my chest. Tyler was breathing hard too.

“You are a good trainer," he said, wiping his forehead.

“Post workout protein?”

I nodded, grabbing my water bottle. “Yeah. Sounds good.”

We headed upstairs to the kitchen. I was sweating profusely, my tank top soaked through and clinging to every ridge of my abs and chest. We started pouring protein powders into the shaker together. While shaking the protein Tyler accidentally kept the lid open and the entire shake spilled right onto my tank top soaking the front completely.

“Fuck sorry,” Tyler apologized but there was a grin that said he did it on purpose.

“It’s fine man. I didn’t really bring another pair of tanks though. Gotta clean this up.”

Tyler took me straight to the laundry room suggesting that I take off the tank and stay shirtless the entire day. What a smart little gay shit I thought. Already planning to get my clothes off. In the laundry room I took off my tank top and threw it in the machine. Tyler watched every move, his eyes hungry.

“You were sweating too much anyways," he said, voice low.

Then his gaze dropped lower to my shorts. “Your shorts look like they caught some protein too. You should take them off.”

I laughed but my cock gave a heavy throb in my shorts. I knew I should shut this down. I knew Mia deserved better. But the thrill of it, the ego rush of having her own brother so openly hungry for me was already hooking me deep. So instead of being a good boyfriend, my hands reached the waistband of my shorts and I pulled them down.

Tyler smiled… that smirk that said he had finally won. So yeah that is how we got in the laundry room with me standing there in my underwear my cock throbbing hard in my Nike undies and my girlfriend's brother staring right at my bulge like he was ready to drop to his knees and finally get what he had been teasing all weekend.

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