You smile down at her, your expression both predatory and affectionate. "It's because of me," you say simply. "I'm going to fill you up again." With that, you position yourself between her legs and push inside her, feeling the head of your cock press against the entrance of her womb.
Her eyes go wide with shock and pleasure as she feels you stretching her even further, pushing deeper into her body than ever before. "Oh...!" she cries out, arching her back as far as her belly will allow.