The actor, who split from Katie Holmes in June, was at Chinawhite on Thursday to see DJ son Connor make his UK debut.
Tom is said to have banned alcohol from the DJ booth before chatting to twins Carla & Melissa Howe, who once competed for a date with Ashley Cole.
Carla told The Sun: "Tom came over and just started chatting to us. He was really friendly.
"We're good friends with Connor from LA but we didn't expect his dad to turn up - especially so soon after his divorce. He was having a great time and is still very good-looking.
"The only problem was he is quite small and we were both wearing heels, so we had to bend over to talk to him. But he was a really nice guy and doesn't look anywhere near 50 - though no-one does in LA."
Melissa added: "He looked very sexy in his jacket."
Tom left just before the end of Connor's set to avoid the paparazzi.
Photo gallery - Tom Cruise and Katie Holmes's relationship:
Copyright: Rex Features