Jane Foster's undeniably a force to be reckoned with, possessing a headstrong nature that speaks to Thor's own, and he smiles against her mouth when he feels the pull on his shirt, knowing she's not strong enough to move him, but bending, regardless. It's only a gesture, though, as he quickly lifts her from the ground, drawing her up towards him with an effortlessness that speaks more of her size than it does of his strength.