I've been reading about treatments for low libido, and the basic choice set I've ended up with is:

• Entactogens (MDMA, 5-MABP)
• "Erotic" psychedelics (2C-B, 5-MeO-DIPT)
• Plain DA stimulants (Adderall; meth; the average medicinal plant people call an aphrodisiac)
• PDE-5 inhibitors (Viagra, Horny Goat Weed, etc.)
• And the only drug actually researched for this purpose: PT-141 Bremelanotide

Anyone with experience in more than one of these classes of drugs (and especially anyone who has used both PT-141 and something from another class): which one would you recommend if the goal is to go from being in very sensual situations but never actually wanting sex, to getting caressed by someone you like and spontaneously generating the thought "I want to fuck this person!"

Note that this isn't about arousal, or wetness, or difficulty/ease of orgasm, or even how fun sex is; it's just about increasing the desire/urge to have sex in the first place.

Also, preferably this would be something that could be safely taken regularly, and which wouldn't be a "trip" or a "high", but just help with this one thing.