Is it normal to fantasize about step aunt

MY step aunt that I use to live with is 32 she works out in good shape nice bubble but and I love when she wears leggings you can see here pussy lips and nice ass I would always jack off and smell her thongs and I would smell my cousins panties I just love the smell and love looking at my aunts ass I've took 2 pictures before and small video of her walking she's my step aunt and I'm 19 and would rock her in bed