You think back to high school health class and think to your self, 'Yeah, humans don't have a cloaca'. You insert your penis into what you hope is your clone's vagina. Given the sound she makes, you were right.
One more item off your bucket list. That had been up there a pretty long time.
"Oh, wow, that feels weird..." She says.
"Bad?" You ask.
"FUCKING AWESOME!" She wraps her legs around you and flips you onto your back, she is now straddling you in what you think is called cowgirl.
Your clone begins to impale herself onto your rod while panting wildly. You sit back and enjoy the show. In the mist of the sex and moaning, your faces come together, you stare deep into her eyes, which are identical you your eyes, and you fall deeply in love. You french kiss your clone while you two orgasm simultaneously.
You actually regret kissing her, it felt like kissing your sister. Hot.
Either way, that felt amazing. Though your collective inexperience looked pathetic and wouldn't make it on any porn site, you don't care about that. Why would you?
(Do I mark this as M/F sex or as self pleasuring? huh...)