Kinks or practices I enjoy ⇒ Have a huge list. Aside from that, cool with anything. Seifer will go for selfish sex a lot of the time. Domination will be a big theme here -- whether Seifer's forced into it or someone lets him do it.
Types of sex I'm not OK with ⇒ The usual: heavy vore, pedophilia, anything in, on, or around bathroom.