"For me, it's just like any other investment," he told Bild newspaper which said Euros 2million ($2.6 million) would be invested to set up eight shops in Slovenia next year.
"I've entered as a silent partner."
Beate Uhse, Europe's leading sex store chain, was founded by Beate Uhse, a former Luftwaffe pilot. It sells more than 10,000 products ranging from sex toys to racy lingerie and erotic films in more than 200 shops in 10 European countries.
F1 driver Ralf Schumacher has teamed up with a subsidiary of German erotic products firm Beate Uhse in a joint venture aimed at the Slovenian market.
