Lets remember this issue of Spammers and Cold Callers
Yes, so any gesture or action that involves interaction with another player needs to be accepted by the receiving player, just like couple dance is now.
Frankly, I think we need to add an Accept button for any cuddle, kiss on cheek, and even kiss during couple dance. Slap, kick, handshake, massage, or any similar new action between two players needs to have an Accept button.
Even if it is a sex game, it damn well has to be a consensual sex game, and that mean consent for each and every action.
Of course, if you want to build in a setting to automatically accept every offered action, fine. But I think that all players need to be able to refuse any offered action if they want.