Two Hearts Beat As One is a short intimacy game about heartbeat synching.
It's 8 pages, with a layout and graphical style that feels intentionally rough. It's not hard to read, but it does have the energy of something printed out on an old photocopier.
Mechanics-wise, you play by taking your own pulse while also taking someone else's pulse. They do the same, and you try to synch your hearts into the same rhythm.
There's suggestions for roleplaying, but they feel sort of so-serious-they-wrap-back-around-to-silly. The advice on consent and safety, on the other hand, is extremely grounded.
Overall, I think if you're looking to experience a moment of unexpectedly intense intimacy with another enthusiastic participant, you should check this out.