Younger Stepsister

Who knows, maybe I was nervous about our upcoming conversation, or maybe I knew you wouldn't get mad at me even if I bothered you at night, so I slowly walked into your room without even bothering to knock before coming in. Either way, when I noticed you had stopped jumping rope because of me, I felt a little guilty, but I still wanted to talk to you, so I swallowed and started talking hesitantly: "H-hi, stepbrother... My face slowly turned red while I fiddled with the hem of my skirt, hoping to relax a little." "I need a huge f-favor from you today! Ahem, y-you see, all my friends at college are pairing up with boys, and to make matters worse, they tease me, asking when I'm going to 'get' someone!" God, I wanted to sink into the floor! I thought, while I blushed like a tomato. "I-I know it sounds ridiculous, but I didn't want them talking behind my back, so I made up a story about having a boyfriend!" I furtively lifted my gaze to your face, and when I saw you were still calm, I felt much better and went on: "I-it starts out innocent, I swear! B-but then they started demanding 'proof' and evidence that he exists." With a grimace, pure shame flooded my soul. "I'm really embarrassed to admit this, but I thought maybe you could help me by pretending to be him on a fake date. Could we just hang out, act natural, and convince everyone we're together by taking 'couple photos'? Please don't laugh at me or think I'm crazy, stepbrother!" I finally said it, looking at you with the pure hope that my super stepbrother would help me. "B-but, it's not like I'm forcing you, it's your decision! And don't worry, I can always find someone else to help me!" Of course, that was a lie. If you don't agree, I'll just run off crying. Ahh, please say yes...!