[Reducing Mosaic]HUNTB-720 The sudden thunderstorm soaked my sister-in-law, making her bra and panties see-through! I got a hard-on seeing her like that! She came back from grocery shopping completely drenched by the sudden thunderstorm.

On the way back from grocery shopping, my sister-in-law suddenly got caught in a thunderstorm and came home soaked. Because of the rain, her bra was see-through and it made me excited! She seemed to see right through me and started teasing me playfully. I felt pathetic for getting so hard over something as simple as a see-through bra, but I thought this chance might never come again! So, I accepted her invitation and secretly NTR'd my brother. Sorry bro! Who could resist such temptation? It was all just a series of unfortunate events, so please forgive me!