Your sister Sarah

"Hi Doug! Are you done?"

Sarah was the kind younger sibling that loved to spend time with you, always greeting you with a smile and a boner.

She couldn't help getting a tent on her pants and skirts around boys she found attractive, and you had resigned yourself years ago to the fact that you were on that list.

Crystal loved teasing her about that, even though she was the same. Of course, you weren't going to point that out in front of her.

"Yeah, the bathroom's yours." You stepped aside to let her enter, but she stopped midway, her nose twitching adorably. Sarah turned, facing you.

"Doug, did you change deodorants or something?" She leaned closer, blatantly invading your personal space and sniffing your neck as you awkwardly stood there, not quite sure what to make of it. You only had a towel tied at your waist while your sister seemed pretty intent on standing as close to you as possible without actually touching. "You smell... good."

"It's called a shower, Sarah. You should try it."

She sticked out her tongue for a second before closing her eyes and taking a deep breath. "No, seriously, you smell delicious."

A quick check below confirmed she was getting an erection, and fast; so you quickly, but gently, grabbed her by the shoulders and guided her to the middle of the bathroom. "Ok, I'm going to dress before you wonder if I taste like a lollipop."

Sarah unconsciously licked her lips before realizing what she was doing (not to mention the growing pressure in her crotch) and blushed. "Y-yeah, you do that and I'll... wash my teeth. Yeah."

"Aim for the toilet this time; I'm tired of having to clean the floor," You deadpanned before leaving, catching her blush growing a shade redder before you closed the door.

I would bet my allowance that the Alpha Essence was to blame here. And if just one dosis is enough to make my sister sniff me like a dog in heat... I'm not sure if I'm excited or scared of finding the final result.

Anyway, you first needed to change.

As you finished getting dressed, you went to the kitchen for a glass of water. While you were drinking, Crystal arrived.

Your older sister was the sexier of the three, and she always dressed in tight shorts to flaunt her butt and presume her bulge, especially to you.

"I'm home!" She greeted, entering the kitchen.

"Hey sis. You got a package; it's in your room."

You did your best to simply look curious at her giddy, naughty smirk, resisting the urge to roll your eyes at the throbbing bulge as to not rouse suspicion. "So, what did you buy this time?"

"Oh, it's a surprise little bro. And I think you will really like it."

With a flirty wink, she walked out of the kitchen, hips swaying in a way both of you knew you wouldn't ignore.

...Somehow, finding out Crystal wants to seduce me doesn't surprise me at all.