A) You're thinking about it too much (wishful thinking); she hasn't really given you anything to act on. In other words, you're misreading everything you think is an ioi.
B) She gave you her ###, TXT if you want. Forget about her boyfriend.
C) Ask your friend, EXPLICITLY, if you can try to F\/cK her, and if he approves:
D) Tell her to come over to your place and hang out, implying that it'll just be you two without specifically saying you'll be alone (make no mention of your friend, or how he won't be there).
If she comes over and you're alone, it's ON. Hang out, talking and watching TV for 15 minutes, with playful Kino Escalation. Then tell her you want to show her something, and that it's really awesome. Grab her by the hand, lead her to your room, shut the door, close in on her like a stud, take command of her body, and fark the sh1t out of her. Without saying anything.
Of course, standard disclaimer applies. NO means NO.