They hit it off at the first sight even though there is a big age gap between them.
Although there have huge gap between their ages, they still like old friends from the start.
In spite of they are not in the same age, they still see each other like a friend.
Even though their ages are quite different, they meet each other as an old friend.
despite their great difference in age, they still get along very well.
They looked as they\'ve known very long,despite of inappropriate age.
Although they in different age, they still became friends.
Despite their age difference, they hit it off when they first met.
Despite of the inappropriate situation in age,they felt as if they\'ve known for a long time.
Also they are in difference ages but they familiar in first sight.