Hopefully this isn't a duplicate thread, but here goes. Name the most memorable H-scenes from any anime or H game that had you going WTF!, Jaw-dropping shock, cryin' like a baby, or just a "Whoa thats F'in HAWT!" moment.
I'll start off with these.
Fate Stay Night visual novel- Heavens Feel where Sakura starts grinding Shirou with an oozing honeypot. Hawt!
My Mean older Sister (3d H-anime)-The "sis" gets this really hawt look on her face and says "Ooi de" in this really smoking voice that just screams "Come hither young stud and DO ME NOW!" Hawt
Taboo Charming Mother H-anime- Final episode scene where the father comes home early and goes through the process of finding out about the relationship between his son and the woman he married. Wedding ring in the ashtray~OMFGWTFthisisgonnabeEPICending moment.

Plus the son also got someone else pregnant!!! EPICx1000000!!!
True Mail?
H-anime- The guy's heart felt apology to his best female friend for raping her even though she liked him already, and she forgave him! I have to admit, I teared up on that. I've never seen a hentai where someone feels bad for the emotional damage they may cause due to such actions...