It usually comes-up during the conversation where you explain her sister is carrying your baby. And you know what? It's frigging rude. You'd think she'd stick to the topic at hand.
bro keep as many as you can...keep it going as long as possible..if they try and make it exclusive drop her and get another to replace..dating does nothing but get you close to marriage kids fat wife no vagina misery alcoholism then back to multiple girls divorce alimony child support and finally broke..its a vicous cycle stop it before it gets to far...lololol