Married for my future

I married a very self-centered man, 2 years older than me. He needed to access his trust fund, only could after he married and had a child. He wanted to enjoy himself instead of raising a family. I was down on my luck looked good his words, as a reward for marrying him and having a child. I would get looked after very well financially, so I married him with prenup in place which put limits on me and limits on him. My future was secure as long as I'd no affairs or publicly embarrassed him, he couldn't divorce me except by a mutual agreement. It suited me as I soon got pregnant and had our son, rarely saw after the birth. I got a house with servants and would care for our son. His trust fund led to an inheritance so he could really enjoy himself. But I'd had to be looked after also, a trust fund for our son was also emplace. My husband could touch it; it was setup by his late grandfather when he setup my husband's trust fund, who the inheritance also came from. His father and mother had died (boating accident) when he was 14, seeing his grandson disregard for everything his grandfather took steps. He didn't have full access to his inheritance just got an annual allowance an 8-figure allowance. I got money separate from his allowance, to keep the family estate and support myself and son, over and above the deal I'd with my husband. So, he had to pay me even out of his allowance, but it wasn't really high mid 6-figures. But it was the price he'd offer to get me to marry him. No increase since, it was only later her found out I would get the extra support. Nothing he could do, couldn't divorce me unless I made a public scandal or lose his inheritance. I also had child custody as he rarely saw his son only just after the birth and when he signed for his inheritance 5 months later in the lawyer's office. He hasn't visited us since in 7 years. I'm nothing special in looks and haven't an outstanding figure either. My life is my son mostly; I started getting horny and didn't want my husband catching me out in an affair. At first, I just masturbated myself and then my son wanted a dog and not a small he wanted a large dog. So, I got him a large protective great Dane, the dog of course was with me mostly while was at school or playing with his friend. But they get on very well when he is home, I would go for long walks on the estate and had a special place I masturbated out of sight of everyone. With a large protective dog with me, nobody would bother me or come close either. At first, he was always nearby when I masturbated, then one day he took more interest you could say came over and just watched me nothing else. The next time he tried to lick my vagina, at first, he went away when told too. But came back and got a couple licks in, he started to retreat as told. But I'd recovered from the initial shock and realized I'd liked his licking. So, I called him back, he came, and I let him lick me. I really enjoyed his attention; I got off quicker and after several lickings he decided to mount me. At first, I was unsure but final decided to give him a go. He really fucked me very well, first time not as much as the following times. After 17 years of marriage, my husband killed himself by driving drunk and speeding. Found out trees didn't move out of the way, they stay put. Killed at the scene, my son barely reacted to the news. I also barely reacted; I was free you could say, but I'd my second dog lover and I'm content to continue on as before. I can't be bothered looking for a man, I've a great dog lover who does me very well indeed.