Sex games for a couple. Sex timer.

If you and your partner don't usually focus on foreplay and prefer to jump right into the "main course", you'd be surprised at the effect of reversing the priorities. Increase the pre-game time, set a timer for a specific time to enjoy every touch, every kiss. Do not proceed to penetration until the alarm rings. And maybe even then you don't want penetration, but you want to give your partner pleasure using only your hands. Or just kisses.