Penetrate her vaginally.

You rub the head of your cock against the slit of Winry's perfect pussy. She lets out and "Mmmm...", as you swirl your dick against her mound letting her moisture seep onto you. She gasps and inhales half the air in the room when you suddenly thrust inside her. "Ohhh...", Winry exclaims as she catches her breath. You look down and admire your cock buried half way inside of her. You grasp her hips with your hand and press the rest of the way inside her, greeted by moans and a steaming hot pussy.