Move to your bedroom.

Still, you two can’t help being nervous about this. You’re inside your bedroom when you hear the front door opening.

Shit, it’s Shelly!

Vivian looks at you like you just got caught doing something awful. You smile and calm her down.

“Don’t worry. It’s my sister. I’ll just… have a word with her. Don’t worry, I’ll be right back.” You kiss her forehead and go to the living room.

“Shelly!” You speak in hushed tones, but your sister still hears you well.

“Why are you speaking like this?” She asks in the same tone.

“Well, you see…” You begin, nervous. “I was wondering… if you could, maybe… go out of an hour or two?”

“Go out? Why would I…Oh MY GOD!” Realization strikes her, but she manages to keep the same hushed tone. “Who is it!?” She sounds excited, surprisingly.

“…Vivian.” You admit.

“Holy shit! You work fast!” Shelly looks amazed. “What happened to not knowing anything about her?” She grins teasingly.

“Well, now I know her! So, could you please…!” You trail off.

“Fine, fine! I’m out!” Shelly says, keeping her grin. “Just remember: be yourself and you’ll be fine. Treat her right, take your time and… Oh! There’s a box of condoms in my drawer! Make sure to use them!”

“…Why do you have a box of condoms?” You asks.

“For you, of course.” She looks at you as if you’re asking a stupid question. “For this exact situation. So don’t worry. They’ll fit you.” She winks. “Okay, I’m out! Good luck!” Shelly gives you a kiss on the cheek and leaves. "Don't fuck it up!"

That last line almost got rid of all the previous encouragement. You go to her room and grab just a couple of condoms. Wouldn’t want Vivian to wonder why you have a whole box. You go back to your room and find Vivian sitting on your bed, looking around.

“Shelly just came back to pick something up.” You tell her. “She’ll be back in a couple of hours.”

“I see.” She actually sighs in relief. She notices the plastic packets in your hand and asks. “Are those… condoms?” She’s somehow embarrassed to say the word.

“Y-yeah. They were giving them away in the hospital the other day. I didn’t think I’d actually be using them.” You lie.

“Well… it’s good you have them.” Vivian is getting more and more nervous by the minute. You have to calm her down.