Have sex with ourselves?

An intriguing idea crossed your mind. What if you had sex with your old body? You ponder whether this counts as masturbation or actual sex, despite you currently inhabiting your mother's body. Furthermore, you have no idea how exactly your old body would react. You always thought your mother was hot, but that you weren't really looking for an incestuous relationship with her. But with some persuasion and the right actions, you knew that you couldn't resist fucking her.

"Son, I just noticed that you aren't bringing home anyone. Is everything alright with you?", you say in your mother's sweet, sultry voice.

Your old body replies: "W-what?! That's none of your business, mom!"

Despite your popularity in school, you haven't really struck up a serious relationship with a girl. And, aside from a couple of blowjobs and quickies, you weren't really sexually experienced. Knowing this, you decide to use it to your advantage. "Come on son, your mother wants to have some grandkids! Wait, don't tell me, are you a virgin? There's nothing wrong with being a virgin!"

"...No mom! I already lost it to someone! Why the hell are we even talking about my sex life?!", your old body replies back, startled.

"Well, that's why I came here. So I can help you with your sex life", you curtly reply back with a grin, showing your mother's white teeth.

"Wait, what? How? That's really really weird, Mom."

"We can have sex, for starters," you quickly reply back.

Shocked, your old body recoils. After a few seconds, it decides to: