Sit on your partner’s lap facing them for a slow ride/make out session.
Even if they’re so excited they last for two seconds—highly possible, please remain calm—they might be able to go another round. Keep kissing, working your way down to see if a little oral revives them for round two.
The Swan Dive
If it’s her first time, sit in bed, facing each other with your legs out and your partner semi-sitting on your lap. Gear up with lots of face-to-face intimate connection and close contact, then start stroking your partner’s clitoris. You can do this simultaneously, but for their first time it might be best to take turns. (If you’re looking for something more penetrative, a lovely ride on a double ended toy works, too.