That expression is mood. I’d love to get my lips on someone I trust and just go to town. I’d give them the keys to my chastity cage and tell them they can give them back if they think I’ve earned it. Then I’d let them get comfortable before I unwrapped them and took their full length. I’d keep eye contact, paying close attention to their needs and adjusting as they instruct. Once I’m in my zone, their pleasure is all I can think about.