Eren felt like he was back to being a sexually inexperienced teen.
He couldn't believe he was brought to the climax by a mere handjob. It could have been his first time receiving a handjob of such magnitude. Or he might have underestimated the act of handjob altogether, believing nobody could do it better than him.
He was proven wrong. He thanked his stars and Nina for bursting his bubble.
For the first time in a while, Eren felt like he needed to give some kind of explanation for his "poor performance." He cleared his throat but couldn't get rid of the slight stuttering as he spoke.
"Y-you see, Aunt Nina. T-this work has kept me… it…"
Eren stopped speaking when Nina's eyes told him it was okay. He gulped as he looked at Nina's smiling face. Eren's cum stained Nina's lips. But somehow, it made her look even more alluring.