Girl from the dorm building across watched me masturbate [M][MF]?

I live in a dorm. Dorm has 6 buildings. My building is distanced from another one for about 20 meters. My roommate has classes in the morning so I am alone in my room for the whole morning.

Today, I got up from my bed to get some water and I opened my window to let some air in the room. I was sleeping shirtless. As I opened the window I noticed a girl smoking in the building across mine, just one flat higher. She quickly glanced at me and turned her look away when I looked at her.

I continued with my morning routine, I made my bed, picked up some clothes on the floor etc. Couple of time I noticed that the girl is whatching me. I was still hard from awakening, but she couldnt notice that. She was just watching me shirtless.

I gathered some courage and found a place and angle in a bed that is visible only to her. When I looked at her direction she turned her head. I slowly took my pants and boxers off, closed my eyes and started to stroke my dick. I was imagining that girl riding me. It felt so good. After some time, I opened my eyes and looked in her direction. This time she didnt turn her head and she wasn’t smoking anymore, she continued to watch me as I was stroking my dick.

[MF] I was the only one to see her naked and touched her

This story is happening through 7 months.
I was in a relationship with a girl older than me. Her name is Lena. I was 20 and she turned 23. She is about 165 cm high, has small but round boobs and a very nice ass. We were not long in a relationship and we both were pretty conservative. I was nude with only one girl before and those were handjobs and blowjobs.

In my dates alone with Lena, we just made out with a bit of touching her breast and pussy through clothes from my side. One night she asked me to come for a sleepover. I knew that Lena was never nude with someone but I hoped for the best.

So I came to her flat. We made out. After quite time of making out I took her bra off. Her boobs were fantastic. Round with big nipples and firm. I was shirtless and constantly grabbing her boobs. Then I put my fingers in her pants and started going around her pussy. She never came before so I wanted her to feel me touching her. She moaned. I rly wanned her to cum so we could continue this whole night. But she wasnt ready and I stopped with touching her.