Teased My Brothers Best Friend.

I come from a pretty close knit family of 4, i have a younger brother, J whos two years younger than me. We have a great relationship at home and we've seen each other in our undies around the house on many occasions and it's become quite normal.

J is quite nerdy and into video games, and his friend T, always comes over and they usually spend the afternoons playing xbox in the den. Sometimes I'd sit and watch them. I don't have a thing for T, but I really enjoyed teasing him. I'd walk around in short shorts and a loose tank top, or just my nightie. J basically ignores me, but I can feel Ts eyes just fixated on my nipples and ass.

One day I casually announce I was feeling hot and went to take a shower. After my shower I changed and went back to sit with them. T excused himself to go to the bathroom, I was sure he wanted to jerk off.
Sure enough when I went to check the laundry hamper later that evening, my nightie I was wearing earlier was stick with cum!

I've never gone further than that, usually just bending down and accidentally flashing a nipple or some ass. Not interested in sex with T, but sometimes I wonder how far I can push it.