BBW squashing can be sexy and is an important part of foreplay for those who have this kind of fetish.
BBW squashing is on the same spectrum as sexual behaviours such as sadomasochism, bondage, and domination, which means that in order to find sexual pleasure, one must feel pain from lack of oxygen, beating, among others.
The different types of ways that men can be squashed by BBWs are:
This position involves the man lying diagonally across a bed with his head at the corner of the bed. The BBW squasher (BBWS) then sits on the man's head with the man's face in the BBWS's crotch. Some BBWSs may move or shake about to enhance the man's pleasure.
This position involves the man lying flat on the bed while the BBWS lies on top of him so that her face is in the man's crotch and is facing his legs (and vice-versa). Either partner may stimulate each other's genitals while in the 69 position.
This position involves a man lying on his back with the BBWS sitting on him and crushing his chest and/or face.
This position involves the BBWS wrapping the man's head between her legs with the man facing either her crotch or her buttocks. The BBWS may completely suffocate the man in this position (and has to rely on the man to signal to her to let her know when to let go).
This position (as might be expected from the name) involves the BBWS riding the man like a horse while he is on his front. This is said to increase the man's sexual arousal.
This is not a position as such but involves two BBWSs sitting on a man in any variation of the positions outlined above.