She clearly has no experience with this act, or, likely, males in general. She seems aware of it, from an academic standpoint, and can putt hat to good use, here, but is far from skilled. She removes her hand, as he pushes down on her head, hesitating for a moment, before sucking him all the way into her mouth, her lips brushing against the skin at the base, as she works to not gag on him, trying to swallow his full length.