I've grown up around cats but they've always been male. I have my first female cat and she is about 7-8 months old. She was spayed at least six weeks ago.
Today a new cat came in the garden and I actually thought it was female from the sounds it was making. (Where I live there are a few obviously unspayed females as I've heard them calling before.). It was very interested in my cat and I thought it might want to make friends. Lol.
It had got in my door and when I went in the front room it stank of wee. I realised then it was a boy! My cat came in and I shut the door but he stayed outside meowing and wailing for ages. I was so surprised at this as, as I've stated, she has been 'done.' Is it usual for a tom cat to still be interested in a spayed female?

I think so. Until they both died, I had two toms vying for my females attention. Both would get in, eat her food, spray and given the opportunity, chase her. I got home one night to find one lying on my bedroom floor while my poor wee girly was hiding under a chair. Took a lot to get the tom out. I don't think they care too much whether the female has been done or not. The stench from the spray is horrible. Lately, mine has been bothered by male cats (both been done I think) and has been scent marking in odd places. Luckily on things that are washable such as carrier bags - and once on my coat. Last summer I had to order another cat away from my house. I think it was a he (couldn't see in the dark) who was sat on my front fence, staring up at my window and calling.

Cheeky little blighters aren't they? Thanks for replying and sharing your experiences. Sounds about normal then. I had the carpet cleaner out and was doing the carpet. Luckily it seems to have worked.
Sorry to hear what your other cats, and now this one are putting up with. Does it just last whilst it's 'kitten season?'
Anyway, hope you aren't bothered too much by them this time!

I don't think unneutered males are too fussy, although I am not sure how far they go with it.

We've had a couple of unneutered males in the neighbourhood, one a stray and one a pet (eventually neutered but way too late). The pet used to try to hump his 'brother' (also an unneutered male!) but I suspect that was dominance related. You see bullocks in the fields here trying to hump each other.

Neither of the toms tried to sh*g my two girls or showed any kind of interest in them though. The toms made a nuisance of themselves - but purely by fighting, and spraying everywhere to show dominance.

I've always had a magnetic catflap - not currently set as it's not needed, but there are a couple of new cats around so I will probably re-set it. I am thinking of changing to a microchip flap so I don't have to worry about them losing collars (and hence magnets, and being unable to get in). It's really stressful for cats to have their homes invaded, particularly by aggressive unneutered toms - and it can result in your own cats 'overspraying' on top of the invading cat's scent, which is then very hard to stop, and very stinky.

With the two previous toms, it was almost constant. I live mid terrace, so no access to the road. The black and white one who patrolled the gardens was around almost every day
http://m1006.photobucket.com/albumvi...5obAwSz3ehY%3D

The black one also patrolled the streets and was incredibly friendly and would disappear for days on end, but come and greet me from work and try to get in the front door. One day he came through the back and this is what I found on my return home:
http://m1006.photobucket.com/albumvi...5obAwSz3ehY%3D (mine is the one at the top of the stairs. Shame they didn't get on, they made a lovely pair!).

I buy Johnson's stain and odour remover to get rid of the smell.

Ive just had my big tomcat neutered today .He was getting in to too many fights and had an abcess from a cat bite on his head .He is only 2 and a half and so hopefully will calm down in a couple of yrs.