How do you think Kafka would handle you not being able to ride him. I physically can not ride my husband and I felt bad about. It makes me feel like I'm not normal. But anyway I love you writing, keep up the good work.
I truly believe that Kafka is about emotional intimacy, as well, if not more so. He's the kind of guy that feels like if there's nothing beyond physical attraction and affection then there's probably not much reason in pursuing the relationship. He really loves to have conversations with you - even if that's all that comes of the time you spend together. It's not about the sex, it's about the connection you both share. Kafka has to have an intellectual connection with you first before he even entertains the idea of any other kind. And Kafka is SO ULTIMATELY aware of physical limitations, as his own were a source of frustration for him for so long. He would never hold something you have no control over against you. What he WOULD do, is set up a nice little space for you. Candles, with the wooden wicks, I just know it. Flowers because you're his little busy bee that needs to fucking chill a bit and take care of yourself. Maybe some wine or sparkling cider - depending on what you both have going on the next day. Lots of soft pillows so you and/or he can be set up comfortably for the other person to have their way with.
In summation, Kafka Hibino is the most perfect man in the Milky Way and no one will ever change my mind so don't try.