Steve ends up on the wrong end of a Hydra base full of would-be super-soldier experiments. They're mindlessly violent, their sex drives are out of control, and once they're let out of their cells and sicced on Cap it gets ugly fast. One of the other side effects of the experimentation? Turns out their semen is an ultra-potent aphrodisiac.

The first time is brutal, painful, and humiliating. The second time, Steve's horrified to find himself getting hard and eventually coming. It isn't until the third time, when his body's positively desperate to get fucked even after multiple forced orgasms, that he realizes the pleasure is artificially induced... and the more they satisfy the craving, the more intense it gets.