Pec-moos (Patreon)

One day in the gym, Alex met another bull, Mac, and he saw him he was wearing a chastity, and he got curious about it. A little time later, Alex got one of his own, and boy did he liked it...! To thank his new bull friend, Alex decided to do a little something for him too, and help him "grow" some big nice Moo-Pecs, like his. Needless to say, both did end enjoying themselves a lot after this ;3.

A little image set, inspired by BuffBullMac. You can go check him out here if you guys like ;3