I know it is consent based, but maybe the developer can add such mechanic for masochism titles and points?. And just maybe, in the later stages, there could be a "self bondage" mechanic. (Like tying yourself up and masturbating and stuff)
Thou I have not find any game that have this mechanic until now. If you know any, please share it.
I don´t know a game about tying up yourself but I have played a hand full of games with bondage content and binding.
The first one comes to my mind is this one. Its heavily or purely based on bondage. There may not even be any other sexual content but it looks like a great game in itself
(14) [RPGM] Didnapper 2 [v3.5] [DID Games] | F95zone
Ill look up the other games later on.
Edit:
Here are some mentions
These 2 games have binding restrains (mostly or exclusively on defeat during battle. Single partymemebers can be captured)
- Sneak In Desperada
- AHRIMAN - THE MORAL SWORD OF ASAGI
On this one you have really well made battle restrains you fight out of and a complex on defeat struggle-fight
- Emblem Knightess Nord (also by Ahriman) and there is an episode 2 of the game too.
I barely played this one, it contains some hardcore fetishes and I couldn´t get into it. But there is bondage involved, even in the tutorial.
- Evil Goddess