Spoon on LetMeJizz
Lazy and gentle is the assumption, but plenty of these scenes get rough with both partners lying on their sides. The position keeps bodies pressed close, his cock entering from behind while a hand stays free to grip her hip or her throat. It reads as intimate yet still allows deep, steady thrusting that can build into something hard. That mix of closeness and reach is what keeps the angle in rotation.
171 spoon videos here, all HD and all free. New ones go up daily, so check back if you don't find your scene first time around.