Fighting Cats

I have 2 cats, Taz is 3 and Moe is 2.  They were both strays and we got them both as kittens.  They are both male.  We had them fixed and declawed when they were old enough because they are strictly inside cats.  (My son has a heart attack if either of them go near a door!)   For the most part, they get along great,  but they "fight" alot too.  One minute they are licking each other like they are in love...the next minute they are holding each other down, biting and pulling out hair!  Is this normal?  It scares my kids because they think they are killing each other...they meow and yeow REALLY loud.  Anyone else experience this??

[aligator79]

Two of my cats Taz and Lucy (HAHA) are both 5 yrs old and grew up together from the very start.  They both have claws- Totally against de-clawing- although I have threatened them with it.  Anyway, They love each other to pieces play sleep roughhouse and fight.  Taz will pin Lucy and they both will growl, hiss, bite, wrestle and then keep on going.- The clumps of hair I find are incredible.   They've never drawn blood on each other but occasionally they will fight like street cats.  

Personally, I think it's just like human siblings- they love each other, argue, fight, and then occasionally draw blood.  Unless it's particularly vicious, constant, or if one acts scared of the other, I'd say it's normal.