For most men bad sex is better than no sex. And bad sex with a girl who is cute and fun and rich probably retains its appeal for some time, if not indefinitely.

Also if TH is not the world's greatest lover, not great sex might be what he's used to. My friend who saw him at the Nuffield said she got the impression that he was rather prim and probably thought 2 seconds of cunnilingus was the dirtiest thing ever. She also suggested that if you were making out and whispered "William Shakespeare" into his ear he would instantly come on your leg.