Update: Well, she's out of heat. However, my (early) neutered 5 year old now knows about sex. I never ever wanted him to even feel the urge, but I guess her incessant calling and posturing finally kicked in that instinct. Towards the end of her heat, I found them lying next to each other and he had thrown his arm her around her shoulders (think shy boy in theater with girl and managed to get his arm around her shoulders. Yes!) How cute. They're friends. Not long after find him straddling her and biting her neck. I separated them, but he's still doing it. This morning I thought I'd ignore it, but about 5 minutes later he's still at it. Any idea if he'll forget this behavior, especially once she's spayed? I wish she'd fight back, but she just lays there. And she's bald, so he's hanging onto just a fold of skin and I'm afraid the skin will get irritated. I'm not sure how often she's been bred, but her chip has migrated to over her shoulder and I can understand why that may be. Run! Also, I'm worried he'll start spraying. What's a mother to do!