This is getting too complicated.
When a man really wants a woman, he learns foreplay (phone games and slow approach and all that bs).
You want a man, learn getting to the point. Immediately jump on his penis and do crazy things. Men talk about "shock and awe" like they know what it is. Using woman's powers of reading men's complex minds, your friend should also know what "shock and awe" means to a guy.
This is not a strategy that works vice versa. As OP said, that would be rapey and scary. However, there are 2 standards at work here, I'm afraid.
Women, you complain as if our lack of foreplay is real. Put that theory to the test and see if abandoning foreplay works in your favour.
You're worried you'll look like a slut? Don't. Men invest in longterm solutions to age old problems. If you can get him to make juice, and often, then he's yours for the longterm and it won't be a thing.
Now, the only question your friend has to ask herself is, who does she think she really is? If you want a bold course of action that works, then that's not really the realm of calculation, is it? Calculation and boldness just don't go together.
The alternative is to listen to your heart, find out what he likes, and then craft some perfect meeting. At some point, a princess Leia uniform will be necessary. Intoxicants and mind altering substances will probably seal that particular deal.
Again, I repeat, this only works one way. Try it the other way and go to jail fellas. I'm comfortable with this one way standard just as long as there's nothing illegal going on.
I don't know about most guys, but I suspect most would not mind. Who knows?