Try dragging it in.
Save the pic to your desktop, click, hold and drag it in the gimp window.
Or, open a new doc in gimp and paste the pic (copy from somewhere)
^^
Thank You SlimJim for this so hawt sexy sig
[24-12, 18:39] Slimjim0617 lmao
[24-12, 18:39] SeanX32 g...4...y
[24-12, 18:39] SeanX32 Uptight and ♥♥♥
[24-12, 18:38] Slimjim0617 lmao
[24-12, 18:38] Slimjim0617 lol
[24-12, 18:38] SeanX32 Just like my mom.
[24-12, 18:38] Slimjim0617 they are always uptight