Hot teen bodybuilder Kieran Billen flexes his muscles.

Muscle vids are inherently erotic, but those set in bedrooms are fire. Both of you home for the summer from college, your computer nerd bud Jake invites you over to play video games. His mother, on her way out, sends you upstairs. You haven’t seen him for months, and there he is, pecs bulging from a tank top, pretty nips exposed. Still cute, yet significantly bigger, he’s been hitting the weights as well as the books. Seeing the lust in your eyes, he begins flexing next to his rumpled bed.

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