Hot sex with young sorceresses made a monster from a guy

The guy met young sorceresses and wanted to master the skills of magic. One of the beauties explained to him that magic was transmitted through a blowjob and sex, after which she passionately sucked him and the boy ended her mouth right in her mouth. Having felt power, he wanted to fuck the rest of the bitches to get more strength. But in the end, it turned into a creature with a huge number of member-like tentacles.