
The sonic lipstick was a device similar to the sonic screwdriver owned by the Doctor, and regularly employed by Sarah Jane Smith. It resembled a genuine 21st century lipstick closely enough not to seem suspicious.

Part of a series on the #Tech of Doctor Who
(via keiths-moonmuffin-deactivated20)
I kind of want this!! For cereal.
There is always Time for some Time Lord… The TimeLord technology… it’s more than bigger on the inside OK. I seriously...
The sonic lipstick was a device similar to the sonic screwdriver owned by the Doctor, and regularly employed by Sarah...