DO NOT USE "KISSING" IN ANY PART OF YOUR PROMPT if you want this to work as intended. The main issue with other penis/testicle kissing LoRAs is that they use the word "kissing" as some part of their activation phrase, which has an overly strong effect on the outcome, meaning you'll usually get conventional lip on lip kissing. This LoRA was trained to avoid the word kissing at all costs to actually get the correct result. d1ckk155 is the activator, with variants being d1ckk155_71p for the tip, d1ckk155_5h4f7 for the shaft (still works but a bit less reliably than the others), and d1ckk155_b4115 for the balls. There are also some other prompts that work well with the LoRA included at the end of the the trigger words section, but they aren't necessary. Strength of 1 works best for me.

d1ckk155, puckered lips, oral sex, oral outercourse,

d1ckk155_71p, penis tip on lips, penis tip,

(d1ckk155_5h4f7, lips on middle of penis, penis on face, (lips fully pressed on penis)),

d1ckk155_b4115, testicles, testicle worship, testicles on lips, (penis on face),

o3o, side view, eyes closed, (lipstick marks on penis, lipstick marks on testicles, lipstick marks on male body), spoken heart <3, (cum on face, projectile cum, ejaculation),