I don't think I've ever seen a more blatant, or literal, piece of fanwank than Whedon's colliding of Kitty and Piotr.
THEY'D BROKEN UP TWENTY YEARS AGO, and had never been a couple even then other than a holding hands, swearing affection, actually rather creepy "Why is that 19 year old dating someone he knows is 15 tops?" way.
Give me the adult, grown up, Warren Ellis written Kitty who told Piotr to essentially, grow up, grow a pair, and she was quite happily having mutually enjoyable sex with Wisdom thank you very much.