mousie, you're so right. or well, i think he arrives with a bit of an oral fixation, i imagine nibbling his own long bunny ears is a self soothing thing he's dones since he was a kit. i just think that image is very adorable. but mnh doesn't like him matting his fur with his drool like that so he starts training him to replace it with other things. like mnh's fingers or barbed cock, which is tough and makes him cry but he tries so hard for his owner.
I think it would also be particularly mean for mnh to give him carrots or worse a carrot shaped dildo to suck on to soothe himself. he tells jsvng it's a special soothing toy for rabbit hybrids and he is so naive he believes him, and mnh gets sick enjoyment out of watching jsvng suckle on it while he tries to move around with how sore he is most of the time. jsvng ofc becomes addicted, if only because its the one thing that is truly his, and mnh loves to sit and play with his mouth using it. jsvng gets so spaced and subby, just gazing dreamily and drooling as mnh moves it in and out of his mouth at whatever speed or intensity amuses him.