Sister In Laws Huge Boobs

So let me start out by saying my SIster in Law, we'll call her Amy, has the biggest natural tits I've ever seen in person. I saw her bra one time when they were staying the weekend with us and it was a 38JJ. If you are familiar with Hitomi the Japanese porn model, they are nearly that big but her boobs are firmer and her nipples are smaller and higher up on her breasts.

Her boobs are like two giant cantalopes, firm, full, and just, damn huge. They are jiggly just from the sheer size and the bottom of them are well below her elbows when she is standing. I suspect she might have macromastia, but I don't know. She loves the attention they bring her but she has talked about having a reduction. Ugh, I hope not. She could be a successful boob model if she wanted to be.

So we were at my MILs in Florida, she is a widow and several of us go down occasionally to work on her house. We had finished a long hot day of work and we decided to cook out. I usually do the grilling, it was 95 degrees out, so everyone else was inside enjoying the air conditioner while I was cooking their dinner.

Amy and I had been flirting a little bit, nothing serious with so many relatives around. She came out to tell me how she wanted her burger done while I was concentrating on the grill. She was standing close by when it started to flame up, so I reached over to grab the water bottle and pretty much got a handful of boob. I was like oh, wow, sorry. And she smiled at me and said "that's ok, you want to do it again?" I kind of laughed thinking she was joking around and she said "I'm serious, cmon".

We went into the nearby garage and she raised her t shirt up exposing two huge delicious boobs overflowing and straining to jump out of her bra. She took my hand and started rubbing it on to her boobs, then lifted her bra up and it was like a waterfall of boob. Flowing down, jiggling, shaking, non stop, with two of the highest nicely sized nipples I've ever seen.

I started kneeding and squeezing them while she started rubbing my cock. She said "we dont have much time" and started jacking me off with one hand while putting her other hand down her shorts and rubbing herself. It only took her about 30 seconds to cum and I was doing my best to hold back and keep this unbelievable luck going.

That is, until she took my cock and placed it between those two incredible juggs. My cock disappeared engulfed in boobs and all I could feel was warm soft heaven around my cock. I think it took about 10 strokes of her boobs and I started squirting cum everywhere. All over her tits, in her mouth, even some in her hair.

We quickly got dressed, I grabbed a shop towel and cleanded us both off and she sadly stuffed her overdeveloped bosom back in her holsters. As she was leaving she said "I've been waiting a long time for that" and left.

I suspect her and my BIL might be swingers, but sadly I'm never around her or them by myself. I have seen her braless in my house, that was a site to behold, but I do have that one glorious encounter.... And btw my wife is loaded too, she's a natural 34GG, but that's another story. Guess it runs in the family.