Soi Fon gets asked by Yoruichi to suck his cock and drain his balls, usually Yoruichi would be doing it but she is unable to reach them in time, it seems she is too busy sucking cock in Hueco Mondo so she asked Soi Fon if she could handle it. Aside from her absence, Yoruichi wanted Soi Fon to suck some cock and loosen up a bit, she figured some rough messy deepthroat would be the perfect way to help Soi Fon relax