If you think a regular woman is hard to gauge, put her on crack and it's a whole 'nother ball game. Sex with an addict is poor at best, they just can't feel anything any more. An addict will tell you 'the sex is amazing', which it can be at first, but that goes away real quick. Along with the sex drive and occasionally she'll have an orgasm, but who knows why the hell it happened...
A female addict turns to prostitution - Totally - 100% - for the money and as soon as she gets it in her hand - it goes straight to the dial-a-dope dealer. Her 'ultimate date' is a guy who is also an addict (or a guy she can make into an addict...watch out...), and they literally SPEND time together until ALL his money is gone and she has ways of getting it ALL, don't worry about that.
I don't know very many male addicts, but they seem to have very little interest in sex, getting drugs takes priority over everything. An 'experienced' male addict is always looking for naive girls to take advantage of to work and make money for his enjoyment - crack - and an older male addict with a place will often have a stable of girls living there who can stay as long as they pay and he uses them as long as possible - for crack - The cycle of 4-5 days on crack (no sleep in those 5 days, coke is a very good stimulant...) and 2-3 days OFF when they finally crash from the sleep deprivation, the other occupants of the crack house rob, rape (no condoms req'd..!) and do whatever to the zombie girls who sleep soundly and cannot move let alone fight. Addicts lose weight and get skinny on the Jenny-Crack program as they really only crave sugar - although if you offer to buy her real food she will usually eat. Do it, you will hate yourself less later.
The love-of-crack-cocaine, especially for females, is even stronger than the love-of-money and is now the 'root of all evil' in my books. I have seen it first-hand and it is not pretty, although the dealers are cool, cute and charming young dudes - but they have a quite short life-expectancy... #2 is always looking to be #1...
Anyway that's my 2 cents on the subject of crack-whores; sex can be chaep, but is terrible and you feel worse after than you did before. SHe may even do 'the nod' which is not an ego booster when her eyes roll back and she falls asleep during sex. Don't know whether to keep goin, slap her, or call 911... And don't even get me started on when she does 'the chicken'... yikes..!