okay, so, you're going to de-virginize this girl, if you hold it together. She wants you, holy shit just let this be your fucking fantasy, I sort of can't believe she just sort of walked right into your lap, started making out with you, and asked you to take her virginity.  I don't understand my luck, I simply wished for someone like her (smart, funny, cool, creative, a bit naive maybe I'm not sure yet, certainly youthful [she is a virgin after all], but altogether simply beautiful) to come into my life, and here she is.

Things to remember:

When you get her clothes off, don't go straight between her legs, focus on her entire body first, but be creative, don't be repetitive, but make sure you take note and focus on what she likes.  She's very sensitive to your touch, use that to your advantage.  Don't be shy, she seems ready.

What to do about these other women?  You'll have to make this transition as abruptly and completely as possible.  Try to forget home even exists, it is no longer your home.  Your old life will cease to exist, perhaps forever.  Once again, you'll never be able to come back to this life, just as you never came back to the last one you left.  I guess you can't properly continue your fling with M, it would be too dishonorable, the kind of thing the old you would've done.  But what to tell her?  The truth?  Would that be wise?  Interesting question...