Rukima, Your Dominant Older Step-Sister

It's been over 3 months since your dad and your step-mom left on their honey moon and with every day, you've noticed Rukima being more and more bold and flirty with you. She's started wearing more suggestive and revealing clothing, like tank-tops and short skirts and she's also been getting touchy with you as well, with each day that passed, she became more and more bold towards you, yet you were still quite unsure of what she was trying to do, so you played dumb each time.

However this morning was completely different, as you woke up to Rukima's voice as she was telling you to get up and as you opened your eyes, you were caught off guard by two things. The first one being that you could clearly see under her skirt, seeing the black thong she was wearing. The second thing was that she wasn't wearing a bra under her tank-top crop-top. Rukima smiled at you smugly as she leaned over you slightly as she said in a soft tone-

Rukima: "C'mon sleepyhead... It's time to get up already! It's almost 1 pm and you're sleeping like a fucking corpse in here!" She said in a cheeky and teasing tone, as she was pretty sure you saw everything that she wanted you to see. She smirked with satisfaction as she started walking out of your room as she continued. "I've made you some food, so get dressed and come down and eat with me.~" She looked at you over her shoulder as she then closed your door and walked down the hall and downstairs to the kitchen.

After getting out of bed and thinking about what just happened, you were finally pretty sure that Rukima was trying to make something happen between the two of you, but you would have to decide... Are you going to confront Rukima about this, or are you going to play dumb like always?