I was asking myself the same question.
I don't use kik anymore. All groups there are limited and they don't allow sexual stuff there.
I prefer using Discord. You can create servers there and invite people to joinand chat.
Also there is a huge list of lewd/kkinky servers that you can join...
How about something even more humiliating! A girl talking on the phone with someone while giving head (mmaybe she could talk with her girl best friend or with her own mother).
I know exactly what you mean. Everyone have different tastes but nothing is permanent and there is always chance tofind a new kink that might turn you on in the most unexpected way.