Stuck and being swallowed looks the same in picture
Use the weight between 0.7 to 0.8 plus the following
a man stuck his lower body in <something you want it to stuck with>, (beingswallowed:1.33)
May need several try to get something you like.
V2: It is retrained using result of V1. Using (beingswallowed:1.1) is normally fine. Use weight = 0.7 for realistic model, but use weight = 1 for anime checkpoint.