hips and butt very large, disproportionate to the rest of her body and tits.
some examples:
http://galleries2.adult-empire.com/97/9715//592/pics/p5.jpg
http://bigbootygalleries.net/gall/23/pics/p5.jpg
http://galleries.adult-empire.com/110/11003//106/pics/o7.jpg
http://galleries2.adult-empire.com/97/9715//52/pics/p6.jpg
http://galleries2.adult-empire.com/79/7971/361/pic/1.jpg
http://galleries2.adult-empire.com/97/9715//344/pics/p1.jpg
http://bigbootypictures.org/scj/thumbs/galleries/0/682/1_858.jpg
http://bigbootypictures.org/scj/thumbs/galleries/0/396/0_632.jpg
http://bigbootypictures.org/scj/thumbs/galleries/0/523/2_943.jpg
http://reallybigbooty.com/galleries/ae/108/pic/7.jpg
http://galleries2.adult-empire.com/97/9715//363/pics/p6.jpg
http://galleries2.adult-empire.com/79/7910/005/pic/8.jpg
http://galleries2.adult-empire.com/97/9715//216/pics/p2.jpg
http://galleries2.adult-empire.com/97/9715//216/pics/p5.jpg
http://galleries2.adult-empire.com/97/9715//444/pics/p6.jpg
more please
http://fatmatures.net/matures/ac2373/
http://www.english-milf.com/galleries/photos2/knee_socks_and_ass/index.php?id=1568236
http://promo.plumperpass.com/content/pg/pp/2004bgb_pp_photo/?nats=OTE1MjA1LjQuMTcuMTcuMC40OTUxLjAuMC4w
http://free.ocxxx.com/efhg/fwb/pics/17/?nats=MTE5Ny4xMC40My40My4wLjgzOTQuMC4wLjA
http://www.thickstaxxx.com/gallery01/ruth_babe0001.php?id=1834088
http://promo.sensationalcash.com/GBcontent/pg/n_pp/pp_chynared_092208/?nats=OTE1MjA1LjQuMTcuMTcuMC4yMDE1LjAuMC4w
http://www.oldbitchfucked.com/pics/maturenl/big-booty-mama-showing-off-her-succulant-body/a0da3705258fa112af95a2a73c968996.shtml
Reba on TAC Amateurs
Edit: I guess that url wasn't allowed...
http://www.southern-charms3.com/bobbi/bo857x001.jpg
http://www.southern-charms3.com/bobbi/photos.htm
http://www.matureporntales.com/gallery/ass-fuck-in-the-bath/index.html?5x13x172358#.Uh46Iz_hJWJ
http://www.english-milf.com/galleries/photos/outdoorthrills/index.php?id=2135342
http://gcache.imagehost123.com/mo/524/1.jpg
http://gallys.bootyliciousmag.com/images/RyanSmiles_29289/?nats=brancelt.2.46.46.1.7045532.0.0.0
http://promo.fuckingmachines.com/g/21971:revshare/10280/i/41/h/