"Seriously, pal, get out of here," Lachlan said, glaring at the husband of the body he now possessed."Why? So you can use my wife's body to fuck more strangers?" Chris responded.Chris and Aisyah were newlyweds. Happily married, or so Chris thought, until he'd come home one day not long after they returned from their honeymoon to find his wife almost naked on the couch with some stranger balls deep inside her. It turned out his wife had been possessed by a bodyhopper named Lachlan, who was intent on becoming a highly paid prostitute."That's exactly right," Lachlan smirked. "These tits. This tight little pussy. I'm gonna be the richest, dirtiest whore in the city." Lachlan smiled as he stroked his body, hands lingering on his chest."Please don't do this.""Not a chance, buddy. This body was too good to pass up. When I'm done you can have her back.""When will that be?"Lachlan shrugged and tossed his hair out of his eyes. "When I've used her up. You can have her when she's old. You two can retire together or whatever. I'm going to use her youth while I've got it."Chris argued some more, raging and threatening, but there was nothing he could do. He couldn't force the bodyhopper out and if he divorced her he would lose everything. So in the end he had to live with his wife coming home all the time with a different guy. He had to ignore the noises of her getting spanked and moaning and cumming around someone else's dick.

In Chapter 3 of this serial where Eric's mom has swapped their bodies to teach him a lesson, Eric's mom starts using him to fulfill her new body's desires. This is too taboo for Amazon and available only on Body Swap Stories and Smashwords.
https://bodyswapfiction.com/enter/?p=11660