This is absolutely terrific, and an incredible feat of writing. Really well designed, very sexy endings, and very, very well written. Been slowly working my way through all the endings, and they're all great. Your stories are always top notch, and this is just awesome. Thank you for sharing this.
I loved the domesticated ending especially. <///<;, but the blackboard, static, and topped by a bottom endings were really good too.
If you ever feel like expanding this, I would love to have more to do with the heroes after acquiring them. A good/bad result of domming each (one where you continue, one where you lose yourself in the moment and fail) would be really hot. Similar setup with the cat would also be sexy.
An alternative escape ending would also be neat.