Title: "Overflowing Passion"
Anime: Full Metal Panic!
Characters: Sousuke Sagara and Teletha "Tessa" Testarossa.
Location: The Love Hotel.
Plot: Sousuke Sagara and Tessa make love to one another after he has engaged in a new romantic relationship with her once again. With Tessa's love for Sousuke renewed, nothing can stop her from reaching her romantic goals. Like before, this action place way after the final chapter of the story. As well as much after he'd broken up with Kaname Chidori for her cheating on him, move on, and started to dating Teletha Testarossa. In other words, you can say it took place after the events of "The Kind of Girl Whom Fall From Grace" and " A Date With Destiny".
Source for the The Kind of Girl Who Fall From Grace." :
full-metal-panic
Source for "A Date With Destiny." :
date-with-destiny
Details: Both characters are completely naked during the intercourse. Be sure that Tessa is on top of Sousuke. Be sure that both of their bodies have sweats during sex. Make sure that both of them moans as well as have their mouth opened during the intercourse.
Reference for Tessa and Sousuke are having sex in the cowgirl position, exactly like this:
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Reference for the Love Hotel where Tessa and Sousuke having sex on the bed:
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