Gender bending time

You ran as fast as you could to your apartment fearing that you were too late. When you got there you room mate was nowhere to be foundonly for you to notice his door was closed and there was soft crying coming from inside. "Hey roomie, are you ok?" You ask tentatively "No!!" shouted a very feminine voice. "I'm coming in roomie." You slowly open the door to find a very sexy woman sitting on the bed crying. "Uhh, roomie?" You ask more than a little confounded. When you stop to look at your room mate you immediately notice the huge knockers on her chest, easily an f cup, maybe even a g cup. You sit down next her and try to comfort her by saying; "Hey, you may be a girl now but at least you are beautiful, not to mention well-endowed." Your room mate sniffles before thanking you and then in a turn of events she says this; "I don't know to much about the female body, but I think I'm in some kind of heat, c-can you help me with it?" You are absolutely shocked. "You want me to what?" You ask. "I want you to fuck me Ok?! God, making me say it." Automatically you want you refuse, but when you look at her body again you quickly change your mind. "Yeah sure." You both strip and get on the bed. The first thing you do is grab her tits and squeeze. Your room mate immediately begins to moan and squirm. Deciding to skip the foreplay you instead position your throbbing cock to align with her pussy and thrust. She moans even louder and squirms harder. You continue to pump in and out of her, grabbing and squeezing her tits causing her to writhe in pleasure. Soon you approach your climax and when finally achieve it you blast your seed into her causing her to pass out. As you are getting dressed you hear a familiar but terrifying sound; Ding! You check your phone to see the following message; 'Your room mate is now pregnant congrats!'