She pushes it in, in one go

Bessie just pushed her hips forward, crossing the distance of ten inches within a second. Her cock easily slid in. She could feel John's rectum, and could feel the end of her cock rubbing against the end.

"Oh? You already applied the lube when putting in the dildo? Guess that also shows that it does mess completely with an event to make it plausible, unless I want something absurd, huh?"

As soon as her base of cock touched John's ass, the asshole tightened, and a wave of pleasure passed over Bessie. She felt like she blacked out for a second, but she still didn't cum.

'This... might be dangerous for me...'

"I am a strong willed woman and cannot succumb to such little pleasure shocks. (Snaps) Also, John's ass is super sensitive when he has my cock in, so he cums a lot when I fuck him. (Snap)"

She could see John spurting from his little dick. She started laughing and moving her hips even faster. With her new physique, she didn't find it a labour to do all that. John was squirting semen all over his bed.

"Now that's a mess... John likes to be submissive. The feeling of Humiliation turns him on even more, and he will always obey the command of Bessie (Snap)"

She snapped her fingers, and then suddenly, grabbed his shoulder length hair. She pushed him down on the bed, and ordered "Lick these sheets clean."

John's ass tightened even more, and he started licking his semen. The more he licked, the more pleasure he felt. Bessie, even with her new willpower, was about to cum.

'I can't lose like this... If I am gonna cum, it's gonna be enough to fill his intestines.'(snap)

Bessie ejaculated from her cock and squirted a little from her pussy, that she still had.

"Oh... Oh!" John was moaning loudly now.

"Take that and enjoy, you bitch." Bessie talked down to him. After five minutes, Bessie slowly retracted her penis, and made it disappear in her body.

"Now I got a handy tool. Hehe, let's go see what else I can do." Bessie left through the door, leaving the passed out John, whose belly was bloated, and hot white semen was gushing out of his ass.