Fondle her breasts

Your hands made their way to Xiu's medium-sized breasts and gave them a small squeeze, causing her to blush and let out a small moan. You then tease and lick her nipples with your tongue before you lower her undies, revealing her virgin twat.

However, Xiu had something else in mind: she crouched down and took out your already erect manhood from your pants. She gasped, knowing full well that she never seen male genitalia before in her life.

"I know you're new to this. I'll be gentle, don't worry." you tell Xiu with a reassuring smile.

Xiu looks up at you and with a small smile, she nods her approval before she slowly stroked your cock with one hand. Opening her mouth slightly, her tongue then licked its way from top to bottom on your shaft.

Slowly engulfing your length with her mouth, you let out a small groan as you watch the sexually inexperienced assassin perform her first fellatio. You had to make sure you wouldn't want to make Xiu gag, though.

Xiu's slow movements with her tongue and hands began to escalate to a more faster pace, and soon her fellatio became a bit more intense. She then gazes up at you and begins to deep throat you slowly.

Her new actions caused your climax to rise steadily, and as a minute or so passed, you ended up climaxing into her mouth, but luckily, Xiu pulled your cock out of her mouth. After she swallows your cum, she blushed before she then got on the bed and laid back, spreading her legs.

You follow suit and mount Xiu carefully, looking down at her with your cock pressed against her.