There's too much to pick only one, anyway one of the sexiest for me is Rick Howard's fs 180 fakie 5-0 kickflip out into the bank at the end of this Yeah Right montage, at 5:12 for the lazy ones.
Stevie Williams part in The Reason is full of trick sexiness.
Any trick done by Penny in the famous chain to bank session.
Any Dylan Rieder's trick in Cherry.
Also any pop out off noseslides by Rob Welsh.