Lure her into the yard

Spending so much time alone has you yearning for some physical contact, so you figure you could try and get some with the topless blue babe. During your last supply trip, you picked up a box of condom, which you hope are enough to protect you from an infection.

Blue is still in the nearby street, examining her surroundings for signs of life, so you decide to give her some incentives to come your way. Several empty bottles are scattered all over the rooftop, and you decide to pick one up and throw it into the school yard. With luck, she'll be the only one to hear it.

The sound of broken glass reverberates much louder than you were expecting, and you jump down to hide behind the small parapet. When you eventually lift your head above the edge to throw a glance down, you see that Blue has taken the bait, and is making her way into the schoolyard, scanning the air around her with her nose.