Ha ha ha
Its not something to worry about. My kids are so old still sometimes they argue among themselves whom I love most. Its just that you have to let the kids know very clearly that all of them are equally loved by you.

There is a 5 years age difference between my son and daughter and my son loves his sister a lot. He takes very good care of her. Still once in a while he does feel jealous of her and complains that I care for his sister much more than him.

Then I need to talk to him how his sister is still too young and we need to take care of her together.

My son is very matured and he takes very good care of his younger sister. And my daughter also has realised that I am there for both of them. Since a year they do not fight a lot for me.

My lovely daughters just love each other. But sometimes they become each others enemy when it comes to sitting in my lap. To avoid the fight I try to avoid such a circumstance when I should get one of them in my lap.
Sometimes when one of them is not well and I take her in lap the other one simply says that she is also not well and I should take her in lap. I hope as they grow up the problem is solved.

Now my kids are old enough to understand everything so they do not fight among themselves but still my youngest daughter thinks that she has the most right on me.

My kids are always ready to share things but when it comes to me each of them want mom to his mom only. Its very important for the kids to learn to share as well as to care for each other.

My story is different from most of the moms who told their stories. My kids love each other a lot so they hardly fight with each other. Elder daughter is always behaving like an elder one and is ready to give up anything to her younger bro.
And my dear son also realizes when her sister needs some of my time and he readily shares me with her.

:) I think though I am a mom myself still till now sometimes I do have a concern about my moms love for me. So, I can expect the same from my kids and its very very natural. My kids do fight among themselves and each of them think that the other one is more dearer to me. But its an everlasting issue and cannot be resolved.

My son's love for his younger sis makes him sacrifice everything apart from mom. When it comes to me, he always says that I am his mom and dad is for his sis
He never says no for anything to his sis like toys, clothes, food etc. but not mom. Even if I say I am mom for both he agrees to that but then he says that Mom but you love me more right. I never have an answer for it apart from saying that I am equal for both of them.

Its very difficult to understand my sons one minute they are fighting and the other minute they stand for each other. They think they have equal right on everything. For me also they understand well that each of them have equal right on me. So, they know that a\m their for them when they need me.