When Diego expresses his surprise, Jennifer comes on hard. She suggest that instead of jazzing into his boxers, he should just fill her pussy right up. She's already nice and wet for him, after all. Diego takes a little bit of convincing, but Jennifer is prepared to make him come around to her point of view. Popping those big boobies out for Diego to admire, Jennifer gets on her knees so she can use her mouth to convince her stepson that fucking her is the best idea.
Since they're already in a bedroom, it's a simple thing for Jennifer to peel off her shorts and push Diego onto the bed so she can ride his hardon in reverse cowgirl while rubbing her clit. Diego gets to be in charge as Jennifer takes a pussy pounding in doggy. Then he flips his stepmommy onto her back so he can push one leg high in the air to open her up for him. Moaning long and loud, Jennifer urges Diego to give her the cum, and he obliges with a big creampie. As she basks in the feeling of fulness, Jennifer reminds Diego that he cums inside her instead of his underwear from now on.