参考になれば If it helps. <lora:breast smother XL-v1:0.7>,(1boy, faceless male,breast rest, cleavage, breast smother, breasts on head, face to breasts,)

Suitable for Pony as well, but given the promts of the previous comment for improved stability it would be completely better like this: 1boy, 1girl, faceless male,breast rest, cleavage, (breast smother), breasts on head, face to breast, femdom, girl on top, hetero, press breasts,girl smothering boy