I watched her intently, her eyes looking up at me as if for approval as she licked it from base to the tip, not leaving a spot untouched. And I couldn't help but let out a small groan of pleasure as she hit the spot that made me quiver.
"Good, Nee-san. Just like that." I encouraged her as I caressed her head, further guiding her movements.
Her eyes were deep in concentration as if she wanted this to be something I'd never forget. At the same time, she wanted me to keep looking at her. Watch her take me deep inside her.
For a first-timer who had no experience with this kind of intimacy, because all of her previous boyfriends had given up on her, she was doing surprisingly well. It felt like she also studied it, but she didn't have someone to perform it to. In the end, I became the lucky person to be subjected to her eager mind. And it's so great I was finding myself getting lost in the sensation of her wet, warm mouth enclosed around and sliding up and down my cock.